package com.itheima.health.controller;

import com.itheima.health.common.MessageConst;
import com.itheima.health.entity.MemberReport;
import com.itheima.health.entity.Result;
import com.itheima.health.service.ReportService;
import lombok.extern.slf4j.Slf4j;
import org.apache.poi.xssf.usermodel.XSSFRow;
import org.apache.poi.xssf.usermodel.XSSFSheet;
import org.apache.poi.xssf.usermodel.XSSFWorkbook;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;

import javax.servlet.ServletOutputStream;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.File;
import java.io.FileInputStream;
import java.io.InputStream;
import java.math.BigDecimal;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;

/**
 * 套餐预约占比饼状图表示层
 *
 * @author 浅唱
 * @since 2022/11/22 0022 17:17
 */
@Slf4j
@RestController
@RequestMapping("/report")
public class ReportController {
    @Autowired
    private ReportService reportService;

    /**
     * 套餐预约占比饼形图
     */
    @GetMapping("/getSetmealReport")
    public Result getSetmealReport() {
        List<Map<String, Object>> list = reportService.findSetmealCount();

        HashMap<String, Object> map = new HashMap<>();
        map.put("setmealCount", list);

        List<String> setmealNames = new ArrayList<>();
        for (Map<String, Object> setmealMap : list) {
            String name = (String) setmealMap.get("name");
            setmealNames.add(name);
        }

        map.put("setmealNames", setmealNames);
        return new Result(true, MessageConst.GET_SETMEAL_COUNT_REPORT_SUCCESS, map);
    }

    /**
     * 运营数据统计⻚⾯展示
     */
    @GetMapping("/getBusinessReportData")
    public Result getBusinessReportData() {
        try {
            Map<String, Object> map = reportService.getBusinessReport();
            return new Result(true, MessageConst.GET_BUSINESS_REPORT_SUCCESS, map);
        } catch (Exception e) {
            log.info("获取运营数据失败 ===>" + e);
            return new Result(true, MessageConst.GET_BUSINESS_REPORT_FAIL);
        }

    }


    @RequestMapping("/exportBusinessReport")
    public Result exportBusinessReport(HttpServletRequest request, HttpServletResponse response) {
        try {
            //远程调用报表服务器获取报表数据
            Map<String, Object> result = reportService.getBusinessReport();

            //取出返回结果 准备将报表数据写入到 Excel文件中
            String reportDate = (String) result.get("reportDate");
            Integer todayNewMember = (Integer) result.get("todayNewMember");
            Integer totalMember = (Integer) result.get("totalMember");
            Integer thisWeekNewMember = (Integer) result.get("thisWeekNewMember");
            Integer thisMonthNewMember = (Integer) result.get("thisMonthNewMember");
            Integer todayOrderNumber = (Integer) result.get("todayOrderNumber");
            Integer thisWeekOrderNumber = (Integer) result.get("thisWeekOrderNumber");
            Integer thisMonthOrderNumber = (Integer) result.get("thisMonthOrderNumber");
            Integer todayVisitsNumber = (Integer) result.get("todayVisitsNumber");
            Integer thisWeekVisitsNumber = (Integer) result.get("thisWeekVisitsNumber");
            Integer thisMonthVisitsNumber = (Integer) result.get("thisMonthVisitsNumber");
            List<Map> hotSetmeal = (List<Map>) result.get("hotSetmeal");


            //获得Excel模板文件绝对路径
            InputStream is = this.getClass().getClassLoader().getResourceAsStream("report_template.xlsx");

            //读取模板文件创建Excel表格对象
            XSSFWorkbook workbook = new XSSFWorkbook(is);
            XSSFSheet sheet = workbook.getSheetAt(0);

            XSSFRow row = sheet.getRow(2);
            row.getCell(5).setCellValue(reportDate);//日期

            row = sheet.getRow(4);
            row.getCell(5);//新增会员数（本日）
            row.getCell(7).setCellValue(totalMember);//总会员数

            row = sheet.getRow(5);
            row.getCell(5).setCellValue(thisWeekNewMember);//本周新增会员数
            row.getCell(7).setCellValue(thisMonthNewMember);//本月新增会员数

            row = sheet.getRow(7);
            row.getCell(5).setCellValue(todayOrderNumber);//今日预约数
            row.getCell(7).setCellValue(todayVisitsNumber);//今日到诊数

            row = sheet.getRow(8);
            row.getCell(5).setCellValue(thisWeekOrderNumber);//本周预约数
            row.getCell(7).setCellValue(thisWeekVisitsNumber);//本周到诊数

            row = sheet.getRow(9);
            row.getCell(5).setCellValue(thisMonthOrderNumber);//本月预约数
            row.getCell(7).setCellValue(thisMonthVisitsNumber);//本月到诊数

            int rowNum = 12;
            for (Map map : hotSetmeal) {//热门套餐
                String name = (String) map.get("name");
                Long setmeal_count = (Long) map.get("setmeal_count");
                BigDecimal proportion = (BigDecimal) map.get("proportion");
                row = sheet.getRow(rowNum++);
                row.getCell(4).setCellValue(name);//套餐名称
                row.getCell(5).setCellValue(setmeal_count);//预约数量
                row.getCell(6).setCellValue(proportion.doubleValue());//占比
            }
            //通过输出流进行文件下载
            ServletOutputStream out = response.getOutputStream();
            response.setContentType("application/vnd.ms-excel");
            response.setHeader("content-Disposition", "attachment;fileName=" + reportDate + "_report.xlsx");
            workbook.write(out);

            out.flush();
            out.close();
            workbook.close();
            return null;
        } catch (Exception e) {
            return new Result(false, MessageConst.GET_BUSINESS_REPORT_FAIL, null);
        }
    }


    @GetMapping("/getMemberReport")
    public Result getMemberReport() {
        log.info("[会员数量图表]");
        MemberReport memberReport = reportService.getMemberReport();
        return new Result(true, MessageConst.ACTION_SUCCESS, memberReport);
    }
}
